Portable toilet



FIG. 1 is a front perspective view of a portable toilet showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a perspective view of open state; and,

FIG. 9 is another perspective view of open state.

The evenly broken lines where present illustrate portions of the portable toilet that form no part of the claimed design. 

CLAIM The ornamental design for a portable toilet, as shown and described. 